SOLVED] - up/down counter using 74LS192 | Forum for Electronics
DeldSim - 4 bit Up/Down Counter using 74HC191
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74191 даташит Fairchild Semiconductor техническое описание радиодетали, Synchronous 4-Bit Up/Down Counter with Mode Control описание на русском аналог микросхема
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DeldSim - 4 bit Up/Down Counter using 74HC191
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